Cal Sensors infrared detectors for medical gas analysis


The MCD-15 PbS and PbSe multichannel detector (MCD) family from Cal Sensors (Santa Rosa, CA) for medical gas analysis applications provides sensitivity of 1.5 × 1010 Jones for detecting up to four distinct materials/gases. Covering 1 to 5 µm, the MCD-15 family provides >99.5% channel isolation and a compact TO-5 footprint. A standard four-channel configuration with four discrete optical bandpass filters is also available, which supports CO, CO2 and hydro-carbon (such as methane) gas analysis.

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Cal Sensors also introduces time-saving digital drive board that optimizes detector performance

SANTA ROSA, CA –Cal Sensors ( announces the global launch of a new family of lead salt infrared detectors as well as the introduction of a new digital drive board. The new multichannel detector (MCD) family provides industry-leading sensitivity and quality for  a variety medical gas analysis applications. The new digital drive board optimizes detector performance and speeds product development processes.

The new PbS and PbSe multi-channel detectors (MCD) provide market-leading sensitivity of 1.5 x 1010 Jones for detection of up to four distinct materials/gases.  Covering one to five microns, the MCD product family provide exceptional channel isolation (>99.5%) and a compact TO-5 footprint with superior quality and reliability.

An optional integrated thermistor within the MCD package optimizes temperature compensation, maximizing measurement precision.  Co-locating the temperature sensor and detector material in a hermetically-sealed TO-5 package ensures they both ‘feel’ the same temperature variations and reduce potential effects of external environmental factors. 

The four channel configuration offers significant opportunities for cost reduction and design simplification minimizing the need for multiple individual detectors and complex optics. System costs and footprints can be reduced up to 60% versus alternative single-detector designs.

The technology is well-suited for a variety of medical gas analysis applications.

Though highly customizable for different applications across the one to five micron infrared spectrum, the MCD-15 line is available in a standard four-channel configuration with four discrete optical bandpass filters. This configuration supports CO, CO2 , and hydro-carbon (such as methane) gas analysis.  Customers also have the choice of specifying custom filters to meet specific application requirements.

Digital Drive Board
Cal Sensors has also launched a new Digital Drive Board that optimizes signal levels for Cal Sensor´s one to four channel detectors.  Designed with a socket that accepts Cal Sensor’s standard one to four-channel detectors, the digital board provides all the electronics necessary to drive the sensor, digitize the output and connect via USB to a computer or microprocessor.  Thus, engineers can focus on the challenges of the system’s design by quickly validating detector viability.  Supporting PbS and PbSe detector technologies, these drive boards were created to dramatically accelerate prototyping and product development.

Cal Sensors presented of its new technologies at booth 5325 of the SPIE-sponsored Photonics West exhibit held January 24-27 in San Francisco, California.  Lead time for the new technologies is 12 weeks.


Posted by Lee Mather

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